<template>
  <div class="login" :style="'background-image:url('+ Background +');'">
    <el-form ref="loginForm" :model="loginForm" :rules="loginRules" label-position="left" label-width="0px"
             class="login-form">
      <h3 class="title">
        ELADMIN 后台管理系统
      </h3>
      <el-form-item prop="username">
        <el-input v-model="loginForm.username" type="text" auto-complete="off" placeholder="账号">
          <!--          <svg-icons slot="prefix" icons-class="user" class="el-input__icon input-icons"/>-->
        </el-input>
      </el-form-item>
      <el-form-item prop="password">
        <el-input v-model="loginForm.password" type="password" auto-complete="off" placeholder="密码"
                  @keyup.enter.native="handleLogin">
          <!--          <svg-icons slot="prefix" icons-class="password" class="el-input__icon input-icons"/>-->
        </el-input>
      </el-form-item>
      <el-form-item prop="code">
        <el-input v-model="loginForm.code" auto-complete="off" placeholder="验证码" style="width: 63%"
                  @keyup.enter.native="handleLogin">
          <!--          <svg-icons slot="prefix" icons-class="validCode" class="el-input__icon input-icons"/>-->
        </el-input>
        <div class="login-code">
          <img :src="codeUrl" @click="getCode">
        </div>
      </el-form-item>
      <el-checkbox v-model="loginForm.rememberMe" style="margin:0 0 25px 0;">
        记住我
      </el-checkbox>
      <el-form-item style="width:100%;">
        <el-button :loading="loading" size="medium" type="primary" style="width:100%;"
                   @click.native.prevent="handleLogin">
          <span v-if="!loading">登 录</span>
          <span v-else>登 录 中...</span>
        </el-button>
      </el-form-item>
    </el-form>
    <!--  底部  -->
    <!--    <div v-if="$store.state.settings.showFooter" id="el-login-footer">-->
    <!--      <span v-html="$store.state.settings.footerTxt" />-->
    <!--      <span v-if="$store.state.settings.caseNumber"> ⋅ </span>-->
    <!--      <a href="https://beian.miit.gov.cn/#/Integrated/index" target="_blank">{{ $store.state.settings.caseNumber }}</a>-->
    <!--    </div>-->
  </div>
</template>
<script>
import Background from '@/assets/images/background.webp'
import {encrypt} from "@/utils/rsaEncrypt";
import Cookies from 'js-cookie'
import Config from '@/settings'
import {setToken} from "@/utils/auth";
import request from "@/utils/request";

export default {
  name: 'Login',
  data() {
    return {
      loginForm: {
        username: 'admin',
        password: '123456',
        code: '',
        cookiePass: '',
        rememberMe: false,
        uuid: ''
      },
      loginRules: {
        username: [{required: true, trigger: 'blur', message: '用户名不能为空'}],
        password: [{required: true, trigger: 'blur', message: '密码不能为空'}],
        code: [{required: true, trigger: 'change', message: '验证码不能为空'}]
      },
      Background: Background,
      codeUrl: '',
      loading: false
    }
  },
  created() {
    this.getCode()
    this.getCookie()
  },
  methods: {
    getCookie() {
      const username = Cookies.get('username')
      let password = Cookies.get('password')
      const rememberMe = Cookies.get('rememberMe')
      // 保存cookie里面的加密后的密码
      this.cookiePass = password === undefined ? '' : password
      password = password === undefined ? this.loginForm.password : password
      this.loginForm = {
        username: username === undefined ? this.loginForm.username : username,
        password: password,
        rememberMe: rememberMe === undefined ? false : Boolean(rememberMe),
        code: ''
      }
    },
    handleLogin() {
      this.$refs.loginForm.validate(valid => {
            const user = {
              username: this.loginForm.username,
              password: this.loginForm.password,
              rememberMe: this.loginForm.rememberMe,
              code: this.loginForm.code,
              uuid: this.loginForm.uuid
            }
            //避免重复加密
            if (user.password !== this.cookiePass) {
              user.password = encrypt(user.password)
            }
            if (valid) {
              if (user.rememberMe) {
                Cookies.set('username', user.username, {expires: Config.passCookieExpires})
                Cookies.set('password', user.password, {expires: Config.passCookieExpires})
                Cookies.set('rememberMe', user.rememberMe, {expires: Config.passCookieExpires})
              } else {
                Cookies.remove('username')
                Cookies.remove('password')
                Cookies.remove('rememberMe')
              }
              this.loading = true
              request.post('http://localhost:8000/auth/login', user).then(res => {
                // console.log(res)
                setToken(res.data.token, this.loginForm.rememberMe)
                this.$message({
                  message: '登录成功',
                  type: 'success'
                })
                this.$router.push({path: '/'})
              }).catch(err => {
                this.loading = false
                this.getCode()
              })
            } else {
              this.$message({
                message: '请检查输入是否正确',
                type: 'warning'
              })
            }
          }
      )
    },
    getCode() {
      request.get('http://127.0.0.1:8000/auth/code').then(res => {
        // console.log(res)
        this.codeUrl = res.data.img
        this.loginForm.uuid = res.data.uuid
      })
    }
  },
}
</script>
<style rel="stylesheet/scss" lang="scss">
.login {
  display: flex;
  justify-content: center;
  align-items: center;
  height: 100%;
  background-size: cover;
}

.title {
  margin: 0 auto 30px auto;
  text-align: center;
  color: #707070;
}

.login-form {
  border-radius: 6px;
  background: #ffffff;
  width: 385px;
  padding: 25px 25px 5px 25px;

  .el-input {
    height: 38px;

    input {
      height: 38px;
    }
  }

  .input-icon {
    height: 39px;
    width: 14px;
    margin-left: 2px;
  }
}

.login-tip {
  font-size: 13px;
  text-align: center;
  color: #bfbfbf;
}

.login-code {
  width: 33%;
  display: inline-block;
  height: 38px;
  float: right;

  img {
    cursor: pointer;
    vertical-align: middle
  }
}
</style>
